Heating apparatus



' n 1,639,941 1927' H. P. HANSON v HEATING PPARATUS Filed Jan I 2 Sheets-Sheet; 1

- kfiizizor H. P. HANSON HEATING APPARATUS Aug. 23, 1927; Y 1,639,941

F'iid Jan. 21. 1926 V 2 Sheets-Sheet 2 l I v 17758712 0) V lmws I. law/v30.

Patented Aug. 23, 1927.

UNITED STATES.

HANS r. HANSON, or CAMBRIDGE, MINNESOTA.

HEATING APPARATUS.

This invention relates to auxiliary heating apparatus adapted to derive its source of heat from the outlet flue of a furnace, stove or other heating. plant.

It is an object of this invention to provide extremely simple but-highly eiiicient apparatus forconserving a large proportion of otherwise wasted heat passing through the flue and chimney of the ordinary heating plant.

' It is a further object to direct the smoke from a heating plant through atortuous passageway enclosed within an open bottom casing, the top of said casing communicating with heat registers whereby an auxiliary current of clean air will be set up through said casing and/will be heated by the radiation from said tortuous passageway, thereby setting up said auxiliary current of heated air.

More specifically it is an object of the invention to provide an inner closed casing communicating with the outlet flue of a heating plant and centrally divided to. form two compartments connected .at their lowerends through an opening in the partition-and an outer casing opened at its bottom end and superimposed about and spaced from the inner casing whereby anauxiliariy current oi.- air will be set up through said outer cas ing and heated by the passageot' hot smoke through the inner casing.

-A still further object of the invention isto provide inner and outer casings formed from a plurality of: sheet metal Walls adapted to be readily assembled or disassembled and capable of being collapsed in compact form for shipping. 4

An additional object is to support the outer casing in spaced relationabout the inner casing in a novel and highly eflicient manner.

These and other objects of the invention will be apparent from-the following description made in connection with the accompanying drawings wherein like characters refer to similar parts throughout the several views and in which i i V Figure l is a somewhat diagrammatical view showing the auxiliary heating apparatus interposed between the flue ofa fun nace and a chimney,

Figure 2 isa' perspective view of the heat ing apparatus, some portions being broken away to show'the interior thereof, I 1

Figure 3 is a pla-n v-iew with some portions brokenaway and "others shown in section,

Application filed January 21, 1926. Seria1' No.82,684.

Figure t is a vertical section taken on the.

line l of Figure 3, and

F igure" 5 is. a cross secti line 5 5 of'Figure l.

In the drawings a furnace of any standard on taken on the type is indicatel by the letter A and a chimney or stack by the letter B. vThe ordinary fiueor smoke pipe from the furnace is indicated by the letter C.

The auxiliary heating apparatus is interposed between the flue O and the chimney B and comprises inner and outer upright rectangular casings indicated as entireties by the letters D and E. Inner casing D is closed at top andbottom and is made up of vertical walls formed by a pluralityot independent channel members 6, having outturned flanges 6 extending at 45 degree angles to the bodies thereof. The bottom 7 of easing D is flanged and secured to the lower edges of the walls 6. A top 8 closes the upper end of easing D provided with flanges adapted-to be secured or insetwithin the walls 6. A vertical partition 9 extends through casing D diagonallydividingtl1e space within into two compartments, the vertical sides thereof eXtend--- -in between two pairs of vertical flanges 6 the lower portion of partition 9 connectsv the two compartments formed in casing D by said partition. A- hinged door lO closes an opening at the lower end of one side of casing D permitting access to the bottom of said-casing tor cleaning purposes. casing E is superimposed about and spaced from inner casing D, and is constructed for the mostjpart similar to said inner casing, they'ertical walls 11 being provided With flanges 11 secured together in rectangular arrangement, by atplurality of vertically spaced bolts 12. The projecting sides of, partition 9 extend between opposite pairs of flanges 11. and are secured thereto, bolts 12 passing through said projecting edges.

In practice, packing strips (not shown) "will be inserted between the several flanges 11 of the outer casing at their joints and the flanges 6 of the inner casing. The walls of the outer casing may also beinsulated with an asbestos coating to raise the efiiciency of the device.

From the above description it will be seen that. the outer casing E is" supported in spaced relation tothe inner .casing bymeans and projected a considerable distance beyond Outer (it) i of the vertical partition. It will also be noticed that the lower end of casing E is open and spaced some distance above the bottom of casing D.-. A cover 13 fits over a the top of casing E having downwardly extended flanges 13 secured to the upper .edges of vertical walls 11. The furnace flue passes through a fitting 11 in one of the vertical walls 11 and communicates with one of the compartments formed in inner casing D through the top portion of one of the vertical walls 6. A conduit 14 likewise passes through one of the vertical walls 11 of outer casing E communicating with the opposite compartment of inner casing 1) through either one of its vertical walls 6. Conduit 14 is connected to chimney or stack B as shown in Figure 1.

A. conduit 15commimicates with the top *of outer casing E and delivers'to a desired "register 16 located in the wall or floor of a room. I If desired, of course, conduit 15 may be dispensed with and the room in which the apparatus is disposed will then be heated bythe auxiliary current of air.

Operation.

' furnace A through the flue G into one of the compartments of inner casing D. This current of hot smoke will pass downwardly through the recess in partition 9 and upward'ly through the opposite vertical compartment and out of inner casing D through conduit 14 and through the chimney 0r stack B. The effect of inner casing D is similar to that of a depending elbow in a flue and does not in any way effect the draft from the chimney or stack. Inner casing D is constructed of sheet metal or some other heat conducting material and obviously has a large amount of radiating surface, the cross sectional area of each of "the compartments formed by the verticalpartition being approximately 1 times as This heat will cause an auxiliary current 1 of air-'to be set up through the outer casing, said air entering outer casing E through the open bottom thereof and passing upwardlyabout the outer sides of casing D and through thetop 13 into conduit 15 where said heated current of clean air may be delivered for heating the rooms of the building. 7 i I The walls of outer casing E may be covered with'asbestos or other non-conducting material to increase the etficiency of the that inassen'ibling the device the plant. WVhile the auxiliary current of heated air may be delivered directly in the room in which the heating apparatus'is disposed, the device is especially adapted to heat rooms on the flooi' 'above the furnace, stove or heating plant. I

It will be obvious that the device may be readily assembled or' disassembled and since the respective casings are constructed of a pluralityof flat sheet metal plates the device may be disassembled and theseveral sheets stacked to form a very compact rectangular bundle for shipping. It. will also be noted and outer casing E may he set up to permit the conduit 14 to extend at right angles to the outlet flue-C or in alignment therewith.

In other words, due to the fact that inner "alls 11;;

casing D is centrally and diagonally tllVlClt-(ti fact must be borne in mind and the walisijx of casings E and D respectively equipped with the apertures and the fittings for the conduit 14 will be set upon the side of'the device facing the chimney orz stack B.

As has been described, the partition Ono;

only diagonally divides the inner casing D to form two communicating,compartments,

but also furnishes efllcient means for mounting the outer casing-E an spaced relation about said 1nnercas1ng.

The device has been put to extensive actual use and has been found highly ctficicnt for the purposes enumerated. It has been found that 111 a two-story building orhou 'e a furnace of sufiicient capacity toymere'ly heat the lower floor thereof, sufflcient heat may be obtained-from the outlet flue by-the employment of applicants device. to efliciently heat the rooms on the upper floor.

llil) From the above description it will be seen that applicant has invented simple heating apparatus of high efficiency. capable of. being manufactured at little cost and comprising few parts. a m

-' It willof course be understood that various changes may be made inythe form, de-

tails, proportions and arrangement of parts without departing from the scope of the invention.

\Vhat is claimed is:

1. Heating apparatus having in combination a closed inner casing of heat ;,conductive material, a-longitudinally disposed partition therein dividing said: casing into flanges extending outwardly from said casing, means for connecting theOutletflue of a heating plant withv one of said compartments, and discharge means connected with said other compartment, an outer casing surrounding said innercasing andrsecured to lit) communicating compartments, longitudinal I said longitudinal flanges in spaced relation to said inner casing, sald outer casing having an intake passage adjacent the lower end thereof, and a discharge passage adjacent the upper end thereof. 1 Y

2. Auxiliary heating apparatus having in combination a: closed inner casing formed from a pair of shell sections having registering flanges, a partition dividing said casing into two compartments communicating at their lower ends, said partition having its sides extending between said registering flanges of said shell sections and projecting therebeyond, means for connecting one of said compartments with theoutlet flue of-a heating plant, discharge means communicating with said other compartment, an outer relatively large casing enclosing said inner casing, and secured in spaced relation thereto by means of the outwardly projecting sides of said partition, said outer casing having air intake means adjacent the lower end thereof, and discharge means adjacent the upper end thereof.

v3. Auxiliary heating apparatus having in combination an upright closed inner casing constructed of heat conductive material, a partition dividing said casing into two compartments communicating at their lower ends, said partition having its sides eXtend ing through the Walls of said casing and projecting therebeyond, means for connecting one of said compartments with the outlet flue of a heating plant and means for connecting the other of said compartments witha: chimney or stack,an outer open-bottomed casing superimposed about said inner casing and supported in spaced relation thereto by means of the outwardly projecting sides of said partition, and heat delivery means communicating with said outer casing.

joints of said vertical walls and projecting therebeyond, an openbottomed outer casing also comprising a plurality of vertical walls secured together and supported in spaced relation to said inner casing by means of the projecting edges of said partition and heat delivery means communicating with said outer casing.

5. Auxiliary heating apparatus having in combination a closed upright inner casing comprising a plurality of flat walls provided with upturned vertical flanges, a vertical partition diagonally dividing said casing into a pair of communicating compartments and having its vertical sides extending between two pairs of adjacent vertical flanges of said walls, means for securing said flanges and partition together, means for connecting one of said compartments with the outlet flue of a heating'plant and means for connecting the other of said compartments with a chimney or stack, an outer openbottomed casing comprising a plurality of flat walls having outturned vertical flanges, means for securing said flanges together and -to the edges of said vertical partition to support said outer casing in spaced relation to said inner casing, and heat delivery means communicating with said outer casing.

In testimony whereof I aflix my signature.

HANS P. HANSON. 

